Question

the development of science is usually a —— process, building on older —— in order to advance new ideas.
a gradual; knowledge
b scattershot; ideas
c hasty; developments
d laboratory; institutions

Explanation:

The development of science is a gradual process. Science builds on existing knowledge. This is a common understanding in the field of natural science. Gradual development allows for the refinement and expansion of scientific ideas.

Answer:

A. gradual; knowledge